Rhythmical negative pressure, microgravity powder conveying device

Abstract

The utility model discloses a rhythm formula negative pressure, microgravity powder conveying device, include: frame and set up in the control electric box of one side of rack, the rack with control electric box fixed installation, the inside of rack is provided with the bucket board, the bucket board is through the slide rail with the rack sliding installation, the bucket board upper end places the stirring drum, the upper end sealed installation of stirring drum has the upper bucket, the upper end of upper bucket is through bolt and the rack screw thread and is combined and is connected, the one end fixed connection of upper bucket is close to stirring drum has the feed pipe, the one end fixed connection of feed pipe is away from upper bucket has the elbow pipe, the one end fixed connection of elbow pipe is away from feed pipe has vacuum conveying device, the upper end fixed setting of vacuum conveying device has vacuum valve, the input valve fixed setting of vacuum conveying device input end, the output butterfly valve fixed connection of vacuum conveying device lower extreme.

Description

Technical Field

[0001] This utility model relates to the technical field of powder conveying, and in particular to a cycle-type negative pressure, microgravity powder conveying device. Background Technology

[0002] In the field of lithium-ion battery manufacturing, how to feed powder into the homogenizer in the most upstream process of homogenization workshop has always been an unavoidable problem.

[0003] A positive pressure pneumatic conveying method was proposed, in which powder is conveyed to a pipeline through a screw extruder, and positive pressure compressed air is used to push the material to the mixer. This improves the environment. However, if a blockage occurs during the conveying process, resulting in excessive pressure, disassembly and maintenance are required, which poses a danger and the risk of greater dust pollution after a pipe burst. Later, a negative pressure conveying method was proposed, in which the powder material is fed into a feeding station, a vacuum conveyor is installed on the mixer, and a vacuum pump is started to convey it to the homogenizer under negative pressure. This method reduces the risk and is easier to disassemble and maintain, but it causes powder to enter the planetary gearbox and transmission components of the homogenizer, damaging the bearings and gears of the homogenizer transmission components.

[0004] Therefore, this utility model proposes a cycle-type negative pressure, microgravity powder conveying device. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a cycle-type negative pressure, microgravity powder conveying device.

[0006] According to an embodiment of the present invention, a cycle-type negative pressure, microgravity powder conveying device is installed outside the equipment and connected to the upper tank, thereby changing the material entering the upper tank and the mixing tank, realizing normal feeding, and reducing the probability of planetary box maintenance.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: it includes a frame and a control box disposed on one side of the frame. The frame and the control box are fixedly installed. A bucket support plate is disposed inside the frame. The bucket support plate is slidably installed with the frame via a slide rail. A mixing tank is placed on the upper end of the bucket support plate. An upper tank is sealed and installed on the upper end of the mixing tank. The upper end of the upper tank is threadedly connected to the frame via bolts. A feed pipe is fixedly connected to the end of the upper tank near the mixing tank. A bend pipe is fixedly connected to the end of the feed pipe away from the upper tank. A vacuum conveying device is fixedly connected to the end of the bend pipe away from the feed pipe.

[0008] A vacuum valve is fixedly installed at the upper end of the vacuum conveying device, and an input valve is fixedly installed at the input end of the vacuum conveying device. The input valve is located on the lower half of the outer side of the vacuum conveying device, and an output butterfly valve is fixedly connected to the lower end of the vacuum conveying device.

[0009] As a further embodiment of this utility model: the vacuum conveying device has a groove for placing the filter element, and the filter element is placed inside the groove of the vacuum conveying device.

[0010] As a further embodiment of this utility model: a pneumatic valve is provided at the upper end of the vacuum conveying device, the pneumatic valve is fixedly connected to the vacuum conveying device through a pipe, and a breather is fixedly provided at the end of the pneumatic valve away from the vacuum conveying device.

[0011] As a further embodiment of this utility model: an air compressor is provided on the upper part of the vacuum conveying device, and at least four individually controlled solenoid valves are provided on the upper end of the air compressor. The four solenoid valves are evenly and fixedly installed on the upper end of the air compressor, and each of the four solenoid valves is fixedly connected to an individual air pipe at the end away from the air compressor. The four air pipes are all connected to the air compressor through the solenoid valves.

[0012] As a further embodiment of this utility model: a planetary gearbox is provided inside the upper barrel, and a flange is connected to the upper end of the planetary gearbox. The flange is threadedly connected to the planetary gearbox by bolts, and the flange is rotatably connected to the frame.

[0013] As a further embodiment of this utility model: at least four through holes are provided at the lower end of the planetary box, and a dispersion device is provided at the lower end of the planetary box. There are two dispersion devices, and both dispersion devices are rotatably connected to the planetary box through the through holes.

[0014] As a further embodiment of this utility model: a stirring device is provided at the lower end of the planetary box, and there are two stirring devices, both of which are rotatably connected to the planetary box through a through hole.

[0015] A cycle-type negative pressure, microgravity powder conveying device according to an embodiment of the present invention has at least the following beneficial effects:

[0016] 1. This utility model utilizes a vacuum conveying device. By closing the output butterfly valve and opening the input valve, the vacuum valve is simultaneously activated. Vacuum extraction creates negative pressure inside the vacuum conveying device's tank, allowing material to enter through the input valve. The filter element prevents material from entering the vacuum valve. Simultaneously, the breather activates, and the output butterfly valve opens, allowing material to be input into the mixing tank by gravity. This vacuum conveying device, by placing the conveying system outside the upper tank and mixing tank, effectively prevents material from entering the planetary gearbox, protecting the planetary gearbox and extending its service life.

[0017] 2. This utility model involves vacuuming for 10 seconds and then stopping for 15 seconds. During the 15-second stop, four solenoid valves work sequentially for three cycles. The breather can adjust the internal pressure of the vacuum conveying device, and the pneumatic valve switch can control the breather to increase the internal pressure of the vacuum conveying device. The entire vacuum conveying device works for one cycle in 25 seconds. The number of cycles can be adjusted according to the required materials and different proportions.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a cycle-type negative pressure and microgravity powder conveying device according to an embodiment of the present utility model.

[0021] Figure 2 This is a three-dimensional front view of an embodiment of the present utility model of a cycle-type negative pressure and microgravity powder conveying device.

[0022] Figure 3 This is a schematic side view of the overall cross-sectional structure of a cycle-type negative pressure and microgravity powder conveying device according to an embodiment of the present utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of a vacuum conveying device for a cycle-type negative pressure and microgravity powder conveying device according to an embodiment of the present utility model.

[0024] Figure 5This is a front view structural diagram of a vacuum conveying device of a cycle-type negative pressure and microgravity powder conveying device according to an embodiment of the present utility model;

[0025] Figure 6 This is a side view cross-sectional structural diagram of a vacuum conveying device of a cycle-type negative pressure and microgravity powder conveying device according to an embodiment of the present utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of a filter element in a cycle-type negative pressure, microgravity powder conveying device according to an embodiment of the present utility model.

[0027] In the diagram: 1. Frame; 101. Support plate; 2. Control box; 3. Mixing tank; 301. Upper tank; 302. Feed pipe; 305. Planetary gearbox; 306. Dispersing device; 307. Mixing device; 308. Flange; 5. Bend; 6. Vacuum conveying device; 601. Output butterfly valve; 602. Input valve; 603. Air compressor; 605. Solenoid valve; 606. Filter element; 607. Vacuum valve; 608. Pneumatic valve; 609. Breather; 610. Air pipe. Detailed Implementation

[0028] The following description, in conjunction with the accompanying drawings, describes a rhythmic negative pressure, microgravity powder conveying device according to an embodiment of the present invention.

[0029] Reference Figures 1-7 This utility model aims to provide an embodiment of a cycle-type negative pressure, microgravity powder conveying device.

[0030] In this embodiment, a cycle-type negative pressure and microgravity powder conveying device mainly includes: a frame 1 and a control box 2 set on one side of the frame 1. The frame 1 and the control box 2 are fixedly installed. A support plate 101 is provided on the inner side of the frame 1. The support plate 101 is slidably installed with the frame 1 via a slide rail. A mixing tank 3 is placed on the upper end of the support plate 101. An upper tank 301 is sealed and installed on the upper end of the mixing tank 3. The upper end of the upper tank 301 is threadedly connected to the frame 1 by bolts. A feed pipe 302 is fixedly connected to the end of the upper tank 301 near the mixing tank 3. A bend pipe 5 is fixedly connected to the end of the feed pipe 302 away from the upper tank 301. A vacuum conveying device 6 is fixedly connected to the end of the bend pipe 5 away from the feed pipe 302.

[0031] A vacuum valve 607 is fixedly installed at the upper end of the vacuum conveying device 6, and an input valve 602 is fixedly installed at the input end of the vacuum conveying device 6. The input valve 602 is located on the lower half of the outer side of the vacuum conveying device 6, and an output butterfly valve 601 is fixedly connected to the lower end of the vacuum conveying device 6.

[0032] When in use, the frame 1 supports the entire equipment. The control box 2 controls the overall operation of the equipment. The hydraulic cylinder controls the movement of the support plate 101. The track allows the support plate 101 to move the mixing tank 3 up and down within the set track stroke. The upper end of the mixing tank 3 is sealed to the upper tank 301 through a sealing ring. The upper tank 301 and the mixing tank 3 are connected internally. The up-and-down movement of the mixing tank 3 facilitates the maintenance of the dispersion device 306 and the mixing device 307 inside the mixing tank 3. The feed pipe 302 and the bend 5 allow the material extracted by the vacuum conveying device 6 to be fed into the mixing tank 3.

[0033] Close the output butterfly valve 601, open the input valve 602, and simultaneously activate the vacuum valve 607. This creates a negative pressure inside the vacuum conveying device 6, allowing material to enter the vacuum conveying device 6 through the input valve 602. The filter element 606 prevents material from entering the vacuum valve 607. At this time, activate the breather 609 and simultaneously open the output butterfly valve 601 to allow material to be input into the mixing tank 3 by its own gravity.

[0034] In order to prevent materials from affecting the vacuum extraction, such as Figures 6-7 As shown, the vacuum conveying device 6 has a groove for placing the filter element 606, and the filter element 606 is placed inside the groove of the vacuum conveying device 6.

[0035] This device allows the filter element 606 to be placed inside the groove opened in the vacuum conveying device 6, thereby making it easy to install and remove the filter element 606 in the vacuum conveying device 6 and facilitate the replacement of the filter element 606 in the future.

[0036] like Figures 3-6 As shown, a pneumatic valve 608 is provided at the upper end of the vacuum conveying device 6. The pneumatic valve 608 is fixedly connected to the vacuum conveying device 6 through a pipe. A breather 609 is fixedly provided at the end of the pneumatic valve 608 away from the vacuum conveying device 6.

[0037] In this device, a pipe is provided at the upper end of the vacuum conveying device 6, and a pneumatic valve 608 is fixedly connected to the pipe. At the same time, a breather 609 is fixedly connected to the other end of the pneumatic valve 608. The breather 609 can adjust the internal pressure of the vacuum conveying device 6. The breather 609 can be controlled to increase the internal pressure of the vacuum conveying device 6 by opening and closing the pneumatic valve 608.

[0038] In order to clean the material adhering to the filter element, such as Figures 3-6As shown, an air compressor 603 is installed on the upper part of the vacuum conveying device 6. At least four individually controlled solenoid valves 605 are installed on the upper end of the air compressor 603. The four solenoid valves 605 are evenly and fixedly installed on the upper end of the air compressor 603. Each of the four solenoid valves 605 is fixedly connected to an individual air pipe 610 at the end away from the air compressor 603. All four air pipes 610 are connected to the air compressor 603 through the solenoid valves 605.

[0039] In this device, the air compressor 603 can store gas at a relatively high pressure. Through the solenoid valve 605, the air inside the air compressor 603 can flow into the air pipe 610. The air pipe 610 can blow the air onto the filter element 606, thereby causing the material attached to the filter element 606 to fall to the material output end.

[0040] At least four individually controlled solenoid valves 605 are fixedly installed at equal intervals on the upper end of the air compressor 603, and the other end of each of the four solenoid valves 605 is connected to a separate air pipe 610. When the four solenoid valves 605 are working, the first solenoid valve 605 opens for 0.5 seconds and then closes. After an interval of 1 second, the second solenoid valve 605 begins to operate in the same way, and the remaining solenoid valves 605 operate in sequence. After the fourth solenoid valve 605 finishes operating, there is a 5-second cycle. After three cycles, all four solenoid valves 605 stop operating. The linear arrangement of the four solenoid valves 605 and the air pipes 610 can increase the working area and improve working efficiency, while also preventing the entire device from becoming unusable due to the damage of one solenoid valve 605.

[0041] In order to make the planetary box rotate, such as Figure 3 As shown, a planetary gearbox 305 is installed inside the upper tank 301. A flange 308 is connected to the upper end of the planetary gearbox 305. The flange 308 is threadedly connected to the planetary gearbox 305 by bolts. The flange 308 is rotatably connected to the frame 1.

[0042] This device uses a planetary gearbox 305 installed inside the upper drum 301, with the planetary gearbox 305 and the upper drum 301 being concentrically positioned during installation. The lower end of the flange 308 is threadedly connected to the planetary gearbox 305, and the upper end of the flange 308 is rotatably connected to the frame 1. A main shaft is connected inside the flange 308 via a keyway. Driven by a motor, the main shaft can drive the planetary gearbox 305 to rotate through the flange 308. There is a certain gap between the upper drum 301 and the planetary gearbox 305, which can prevent the planetary gearbox 305 from rubbing against the inner wall of the upper drum 301 during rotation.

[0043] In order to ensure that the materials are mixed evenly, such as Figure 3As shown, the planetary box 305 has at least four through holes at its lower end. Two dispersing devices 306 are provided at the lower end of the planetary box 305. Both dispersing devices 306 pass through the through holes and are rotatably connected to the planetary box 305. Two stirring devices 307 are provided at the lower end of the planetary box 305. Both stirring devices 307 pass through the through holes and are rotatably connected to the planetary box 305.

[0044] This device, through four through holes at the lower end of the planetary box 305, allows for the symmetrical installation of two dispersing devices 306 and two stirring devices 307. The main components of the dispersing device 306 are a dispersing shaft and two dispersing discs, which are respectively fixedly installed in the middle and lower ends of the dispersing shaft. The main components of the stirring device 307 are a stirring shaft and a stirring paddle, which is fixedly installed at the lower end of the stirring shaft. When the planetary box 305 rotates, it can drive the dispersing device 306 and the stirring device 307 to revolve around the sun. At the same time, the dispersing device 306 and the stirring device 307 will also rotate on their own axes. Under the combined action of revolution and rotation, the stirring of materials can be accelerated.

[0045] Working principle: During use, the frame 1 can support the entire equipment, the control box 2 can control the overall operation of the equipment, the hydraulic cylinder can control the movement of the support plate 101, and the track can enable the support plate 101 to drive the mixing tank 3 to move up and down within the set track stroke. The upper end of the mixing tank 3 is sealed to the upper tank 301 through a sealing ring. The upper tank 301 and the mixing tank 3 are connected internally. The up and down movable mixing tank 3 facilitates the maintenance of the dispersion device 306 and the mixing device 307 inside the mixing tank 3.

[0046] During material conveying, the output butterfly valve 601 is closed, the input valve 602 is opened, and the vacuum valve 607 is activated. Vacuum extraction for 10 seconds creates a negative pressure inside the vacuum conveying device 6, allowing the material to enter the vacuum conveying device 6 through the input valve 602. The filter element 606 prevents the material from entering the vacuum valve 607. At this time, the breather 609 is activated, and the output butterfly valve 601 is opened to allow the material to be input into the mixing tank 3 by its own gravity. The groove in the vacuum conveying device 6 allows the filter element 606 to be placed inside the groove, making it easy to install and remove the filter element 606 inside the vacuum conveying device 6 and facilitate the replacement of the filter element 606 later.

[0047] After vacuum extraction for 10 seconds, the process stops for 15 seconds. During this 15-second stop, the four solenoid valves 605 operate sequentially for three cycles. The air compressor 603 provides gas at a higher pressure. The solenoid valves 605 allow air from inside the air compressor 603 to flow into the air pipe 610. The air pipe 610 blows the air onto the filter element 606, causing the material adhering to the filter element 606 to fall to the material output end. The four individually controlled solenoid valves 605 are fixedly installed at equal intervals on the upper end of the air compressor 603, and the other end of each of the four solenoid valves 605 is connected to a separate air pipe 610. When the four solenoid valves 605 are working, the first solenoid valve 605 opens for 0.5 seconds and then closes. After a 1-second interval, the second solenoid valve 605 begins to operate in the same way, and the remaining solenoid valves 605 operate sequentially. After the fourth solenoid valve 605 finishes operating, a 5-second cycle is completed.

[0048] After three cycles, all four solenoid valves 605 stop operating. The linearly arranged four solenoid valves 605 and air pipe 610 can increase the working area and improve working efficiency. A pneumatic valve 608 is fixedly connected through the pipe, and a breather 609 is fixedly connected to the other end of the pneumatic valve 608. The breather 609 can adjust the internal pressure of the vacuum conveying device 6. The switch of the pneumatic valve 608 can control the breather 609 to increase the internal pressure of the vacuum conveying device 6. The working cycle time of the entire vacuum conveying device 6 is 25 seconds. The number of cycles can be adjusted according to the required materials and different proportions. The feed pipe 302 and the bend pipe 5 can input the material extracted by the vacuum conveying device 6 into the mixing tank 3.

[0049] The planetary box 305 and the upper tank 301 are concentrically arranged during installation. The upper end of the flange 308 is rotatably connected to the frame 1. The main shaft is connected inside the flange 308 through a keyway. The main shaft can drive the planetary box 305 to rotate through the flange 308 under the drive of the motor. There is a certain distance gap between the upper tank 301 and the planetary box 305, which can prevent the planetary box 305 from rubbing against the inner wall of the upper tank 301 during rotation. Through the four through holes opened at the lower end of the planetary box 305, the two dispersion devices 306 can be symmetrically installed, and the two stirring devices 307 are also symmetrically installed. The main components of the dispersion device 306 are the dispersion shaft and two dispersion discs. The two dispersion discs are fixedly installed in the middle and lower ends of the dispersion shaft, respectively. The main components of the stirring device 307 are the stirring shaft and the stirring paddle. The stirring paddle is fixedly installed at the lower end of the stirring shaft.

[0050] When the planetary box 305 rotates, it can drive the dispersing device 306 and the stirring device 307 to revolve around the sun. At the same time, the dispersing device 306 and the stirring device 307 will also rotate on their own axis. Under the combined action of revolution and rotation, the stirring of materials can be accelerated.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cycle-type negative pressure, microgravity powder conveying device, characterized in that, include: A frame (1) and a control box (2) are provided on one side of the frame (1). The frame (1) and the control box (2) are fixedly installed. A bucket support plate (101) is provided on the inner side of the frame (1). The bucket support plate (101) is slidably installed with the frame (1) via a slide rail. A mixing tank (3) is placed on the upper end of the bucket support plate (101). An upper tank (301) is sealed on the upper end of the mixing tank (3). The upper end of the upper tank (301) is threadedly connected to the frame (1) via bolts. A feed pipe (302) is fixedly connected to the end of the upper tank (301) near the mixing tank (3). A bend pipe (5) is fixedly connected to the end of the feed pipe (302) away from the upper tank (301). A vacuum conveying device (6) is fixedly connected to the end of the bend pipe (5) away from the feed pipe (302). A vacuum valve (607) is fixedly installed at the upper end of the vacuum conveying device (6), and an input valve (602) is fixedly installed at the input end of the vacuum conveying device (6). The input valve (602) is located in the lower half of the outer side of the vacuum conveying device (6), and an output butterfly valve (601) is fixedly connected to the lower end of the vacuum conveying device (6).

2. The cycle-type negative pressure, microgravity powder conveying device according to claim 1, characterized in that, The vacuum conveying device (6) has a groove for placing the filter element (606), and the filter element (606) is placed inside the groove of the vacuum conveying device (6).

3. The cycle-type negative pressure, microgravity powder conveying device according to claim 2, characterized in that, The upper end of the vacuum conveying device (6) is provided with a pneumatic valve (608), which is fixedly connected to the vacuum conveying device (6) through a pipe. A breather (609) is fixedly provided at the end of the pneumatic valve (608) away from the vacuum conveying device (6).

4. The cycle-type negative pressure, microgravity powder conveying device according to claim 3, characterized in that, An air compressor (603) is provided on the upper part of the vacuum conveying device (6). At least four individually controlled solenoid valves (605) are provided on the upper end of the air compressor (603). The four solenoid valves (605) are evenly and fixedly installed on the upper end of the air compressor (603). Each of the four solenoid valves (605) is fixedly connected to a separate air pipe (610) at the end away from the air compressor (603). The four air pipes (610) are all connected to the air compressor (603) through the solenoid valves (605).

5. The cycle-type negative pressure, microgravity powder conveying device according to claim 1, characterized in that, The upper barrel (301) is equipped with a planetary box (305). The upper end of the planetary box (305) is connected to a flange (308). The flange (308) is threadedly connected to the planetary box (305) by bolts. The flange (308) is rotatably connected to the frame (1).

6. The cycle-type negative pressure, microgravity powder conveying device according to claim 5, characterized in that, The planetary box (305) has at least four through holes at its lower end. The planetary box (305) is provided with a dispersing device (306) at its lower end. There are two dispersing devices (306), and both dispersing devices (306) are rotatably connected to the planetary box (305) through the through holes.

7. The cycle-type negative pressure, microgravity powder conveying device according to claim 5, characterized in that, The planetary box (305) is provided with a stirring device (307) at its lower end. There are two stirring devices (307), and both stirring devices (307) are rotatably connected to the planetary box (305) through the through hole.

Images